Abstract
The ATLAS detector will allow a precise spatial reconstruction of the kinematics of B hadron decays. In combination with the efficient lepton identification applied already at trigger level, ATLAS is expected to provide large samples of exclusive decay channels cleanly separable from background. These data sets will allow spin-dependent analyses leading to the determination of production and decay parameters, which are not accessible if the helicity amplitudes are not separated. Measurement feasibility studies for decays B s 0→J/ ψφ and Λ b 0→ ΛJ/ ψ, presented in this document, show the experimental precisions that can be achieved in determination of B s 0 and Λ b 0 characteristics.
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